What is an Industrial UPS? Why Do Factories Need It?
Industrial UPS systems help maintain a stable power supply during electrical disturbances.
They protect equipment from voltage dips, surges, and unexpected power outages, while minimizing downtime and production losses.
Quick UPS Selection Guide
- Factories, production lines → ✅ Online UPS
- Servers, IT systems → ✅ Online / Line-interactive UPS
- Offices, small equipment → ✅ Line-interactive UPS
- Basic, cost-saving needs → ✅ Offline UPS
⇒ If your system is critical and cannot tolerate interruptions, the safest choice is always an Online UPS.
Even a power outage lasting only a few seconds can stop an entire production line, causing mass product defects and significant financial losses.
To ensure continuous and safe operation, factories increasingly rely on UPS systems as an effective power protection solution.
What is an Industrial UPS?
According to the international standard IEC 62040, an Uninterruptible Power Supply (UPS) is defined as a device that provides continuous power to loads when the main power source is interrupted or of poor quality.
Compared to residential UPS systems, industrial UPS systems offer:
- High capacity (from a few kVA to hundreds of kVA)
- Continuous operation in harsh environments
- High stability suitable for production lines
⇒ A UPS not only provides backup power but also stabilizes voltage and filters electrical noise to ensure power quality.
Why Are Industrial UPS Systems Essential for Factories?
Prevent Production Downtime
- Sudden power loss → production stops
- UPS allows systems to continue running or perform a safe shutdown
Protect Equipment and Automation Systems
- PLCs, inverters, and servers are highly sensitive to voltage fluctuations
- UPS stabilizes voltage and prevents damage
Reduce Financial Losses
- A single shutdown can result in significant financial damage
- UPS is a small investment compared to potential risks
Ensure Data Safety
- Servers and SCADA systems require continuous power
- UPS prevents data loss during power failures
Comparison: Residential UPS vs Industrial UPS
| Criteria | Residential UPS | Industrial UPS |
| Application | PCs, office equipment | Factories, production systems |
| Capacity | 500VA – 3kVA | 1kVA – 500kVA+ |
| Backup Time | 5 – 15 minutes | 5 – 60 minutes (or more) |
| Technology | Offline / Line-interactive | Mainly Online (Double Conversion) |
| Transfer Time | 2 – 10 ms | 0 ms |
| Voltage Stability | Medium | Very high |
| Load Capability | Low | High (continuous load) |
| Durability | Medium | High (industrial design) |
| Environment | Office | Harsh industrial conditions |
| Scalability | Limited | High (parallel, modular) |
| Cost | Low | High |
Conclusion:
- Residential UPS → basic needs
- Industrial UPS → mandatory for critical systems
Structure and Operating Principle of Industrial UPS
1. Structure
A standard industrial UPS (especially Online UPS) includes:
- Rectifier
Converts AC → DC and charges batteries - Inverter
Converts DC → AC to supply stable power - Battery
Stores energy and supplies power during outages - Static Bypass Switch
Switches to mains power in case of UPS failure or overload - Charger
Maintains battery charge
2. Operating Principle
When mains power is available:
- AC is converted to DC to charge batteries
- Simultaneously supplies stable power to loads
When power fails:
- UPS uses stored battery energy
- Converts DC → AC to supply loads
- Transfer time ≈ 0 ms (Online UPS)
⇒ Ensures no interruption or sudden shutdown.
Common Types of Industrial UPS
1.Offline (Standby UPS)
- Low cost, simple design
- Slow transfer time
- Rarely used in industry
2. Line-interactive UPS
- Voltage regulation capability
- Suitable for medium systems
3. Online UPS (Double Conversion)
- Continuous power supply (100%)
- Zero transfer time
- Ideal for factories and critical systems
⇒ Recommendation: Online UPS is the optimal choice for industrial environments.
Comparison of Industrial UPS Types
| Criteria | Offline UPS (Standby) | Line-interactive UPS | Online UPS (Double Conversion) |
| Operating principle | Activated only during power outage | Voltage regulation + switching | Continuous double conversion |
| Transfer time | 5 – 10 ms | 2 – 4 ms | 0 ms |
| Voltage stability | Low | Medium | Very high |
| Noise filtering | Low | Medium | Excellent |
| Suitable applications | PCs, small devices | Small servers, offices | PLCs, production lines, factories |
| Typical capacity | < 2 kVA | 1 – 10 kVA | 1 kVA – 500+ kVA |
| Cost | Low | Medium | High |
| Applications | Residential | Office, IT | Industrial, manufacturing |
| Reliability | Low | Fair | Very high |
⇒ Quick Conclusion
- Factories → choose Online UPS
- Offices → use Line-interactive UPS
- Homes → use Offline UPS
How to Select the Right Industrial UPS
- Load capacity: Calculate total load and add 20–30% margin
- Backup time:
- 5 minutes → safe shutdown
- 15–30 minutes → continuous operation
- Load type:
- Inductive (motors) → higher capacity UPS
- Electronic → high stability UPS
- Environment:
- High temperature/dust → industrial-grade UPS
⇒ Incorrect selection can lead to overload or system failure.
Industrial UPS Applications
1.Control Systems
- PLC, HMI, SCADA, DCS
- Require uninterrupted power
2. IT & Data Systems
- Servers, MES, ERP
- Prevent data loss
3. Automation Systems
- Control panels, industrial robots
- Production lines
4. Industry Applications
- Steel, cement → continuous production
- Food & beverage → process stability
- Pharmaceuticals → strict power quality
- Energy → monitoring & control
- Aviation → critical systems reliability
5. 24VDC UPS in Automation
DC UPS systems (24VDC) are widely used for:
- Supplying PLCs and sensors
- Maintaining control signals
- DIN rail integration
⇒ Essential solution for modern automation systems.
Conclusion
A UPS is not just a backup device—it is a critical part of a factory’s operational infrastructure, ensuring continuity, safety, and system reliability.
AUMI – Official Distributor of PULS UPS in Vietnam
In addition to AC UPS, automation systems require 24VDC UPS to protect PLCs and sensors—an often overlooked second layer of protection.
AUMI is the official distributor of PULS (Germany) in Vietnam, providing high-quality industrial power solutions.
Benefits of PULS UPS
- Continuous power supply for PLC, IPC, control systems
- Protection against power failure and voltage fluctuations
- Improved system stability and lifespan
Popular PULS UPS Models
Model UBC10.241 – compact design, suitable for basic systems
Model UB20.241 – medium power capacity, ideal for standard industrial applications
Model UB40.241 – designed for critical systems
⇒ View detailed PULS UPS products at: https://aumi.com.vn/c/puls/nguon-dien-phu-tro/nguon-luu-dien-ups/
Common Mistakes When Using UPS in Industrial Applications
Based on real-world implementation experience, AUMI has identified several common mistakes when selecting and using UPS systems:
- Undersized UPS → overload and system failure
- Ignoring backup time → insufficient time for safe handling
- Overlooking high-temperature environments → reduced battery lifespan
- Lack of periodic maintenance → unstable UPS performance
AUMI Recommendations
- Always assess the actual load requirements
- Prioritize Online UPS for critical systems
- Perform regular maintenance every 3 – 6 months
FAQ – Industrial UPS
Q: How long can an industrial UPS provide backup power?
A: It depends on battery capacity, typically ranging from 5 to 30 minutes or longer.
Q: Can a UPS replace a generator?
A: No. A UPS is designed for short-term backup, while generators are used for long-term power supply.
Q: Does a UPS require maintenance?
A: Yes. Regular maintenance is required, especially battery inspection and replacement.
Q: What are the advantages of an Online UPS?
A: It provides zero transfer time (0 ms) and delivers the highest level of voltage stability.
Q: Can a UPS be used for an entire factory?
A: Typically, UPS systems are used for critical loads such as PLCs, servers, and control systems.
Q: Does a UPS operate immediately during a power outage?
A: Yes. It operates almost instantly (0 ms for Online UPS).
Q: How much does an industrial UPS cost?
A: The cost depends on capacity, technology (Online/Offline), and backup time.
Industrial UPS systems can range from a few million to several hundred million VND.
👉 It is recommended to select a UPS based on actual requirements to optimize cost and operational efficiency.
Q: Where can I buy genuine UPS products?
A: You should choose an authorized distributor that provides proper technical support and after-sales service.
AUMI is the official distributor of PULS (Germany) UPS systems in Vietnam, offering high-quality 24VDC power solutions for industrial automation.
Contact AUMI for Consultation & Quotation
📞 Hotline: 0917 991 589
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/c/PULS
Office Locations
- Hanoi Office:
B44, Villa Area, Viet Hung Urban Area, Viet Hung Ward, Hanoi - Ho Chi Minh Office:
2nd Floor, HS Building, 260/11 Nguyen Thai Binh Street, Bay Hien Ward, Ho Chi Minh City - Da Nang Office:
9th Floor, VPBank Building, No. 2, 30-4 Street, Hoa Cuong Ward, Da Nang
AUMI Commitment:
Genuine products with full CO/CQ documentation – accurate technical consulting – optimized cost solutions.
